#include <stdio.h>
#include "head.h"
int main(void){
       int a,b;
       printf("enter two numbers:");
       scanf("%d %d",&a,&b);
       for(int i=0;i<=5322;i++){
}
       printf("add:%d\n",add(a,b));
       printf("sub:%d\n",sub(a,b));
       printf("mul:%d\n",mul(a,b));
       printf("div:%lf\n",div(a,b));
       return 0;
}
